Home › Tamil Nadu SSLC (Class 10) › Biology › Environmental Management › Which toxic metal present in e-waste is specific…
Which toxic metal present in e-waste is specifically noted to damage the central and peripheral nervous system and affect brain development in children?
AChromium
BCadmium
CLead
DMercury
Answer & Solution
Correct answer: C. Lead
1. The health-effects table links each e-waste metal to a specific harm.
2. Lead is noted to damage the central and peripheral nervous system and affect brain development in children.
3. Chromium causes asthmatic bronchitis, cadmium accumulates in kidney and liver, and mercury chronically damages the brain and respiratory system, so A, B and D mismatch.
4. Hence the answer is C.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit "Environmental Management", p.330_
Related questions
Which method of solid-waste disposal involves digesting biodegradable matter by microbes oIn the conventional wastewater treatment process, the step in which microbial contaminantsIn Tamil Nadu, the traditional interconnected tanks or lakes used to harvest and divert raThe technique of collecting and storing rainwater so that it percolates underground to recWhich statement about wind energy is INCORRECT?Biogas, commonly called 'Gobar gas', is produced by the decomposition of animal and plant Solar cells (photovoltaic devices) generate electricity because they are made of silicon tFossil fuels such as coal, petroleum and natural gas are formed mainly by the: